Cooler for oil and other liquids



Nov. 19, 1940. J. F. BEL'AIEFF ETAL 2'222496 COOLER FDR OIL AND o'xHER LIQUJ ZDS' Filed se t'. 18, 1939 Wan s 5 J25 Zaie v JWW Patented Nov. 19, 1940 coon-1a FOR OILAND o'rnEn. LIQUIDS James Frank Belaiefl' and Cyril Terence Delaney,

h Cricklewood, London, England Application September is, 1939, Serial No. 295,544

a In Great Britain February 15, 1939' 7 Claims.

This invention' relates to a new or improved type of cooler for liquids, such as 011, whose viscosity varies appreciably at different temperatures. I

The present invention consists in the combination of two radiators arranged in V-shape formation and containing radiator tubes of small gauge, a radiator within the V section and containing radiator tubes of large gauge, a conduit at each side of the radiators which are arranged -V-shape and form a closure therefor, and two header tanks and an intermediate tank connected with the two radiators arranged V-shape.

' as shown in- Fig. 1. These two radiators have Throughout the views similar parts are marked" with corresponding letters of referencen In carrying this invention into effect two radi- I ators a, b, are arranged in V-shaped formation very small gauge of tubes c. Within the centre of the V-shape formation of radiators is mounted another radiator with horizontally arranged tubes d of larger gauge to those at 0. .Air ducts are provided from an entrancee, through the gills of the radiators a, b, to the outlets j, a, as shown in Fig. 1 Header tanks for the radiators a, b, are shown at h, i, and an intermediate tank for the purpose hereinafter described is shown at a; v

Referring specially to Figs. 2. 3, 4, it will be seenthat there are conduits k, l, on each side of the radiators a, b and form a closure therebetween.

The operation oi the cooler is as follows:

Oil enters the tubes d. through an opening m, passes through the tubes d from the conduit k to the conduit 1. The conduits k' and I serve as headers for thetubes d. The oil then'pas'ses down the conduit 1 into the lower header tank 5, as indicated by the arrows in Fig. 3. The oil then passes up the lower small tubes c of the lower radiator b into the intermediate tank 1' and then up the small tubes c of the upper header tank It and out of the opening n.

- When the oil is too viscous for passing through all the abovementioned stages of transit, it enters the opening m, passes through the larger tubes dinto the conduit 1 and then direct. from this. conduit 1 into the upper header tank 71. instead of the lower header tank 2'. .This direct operation is provided for by the by-pass valve which is of any known and convenient construction; such as. the spring controlled ball type of valve as indicated in Fig. 3.

1. In a heat exchanger, the combination of two radiators arranged in V-formation, said radiators each including tubes and headers, and connected together in series, a third radiator comprising side headers and connecting tubes with the tubes passing'betweenthe first two radiators and within the V thereof, means to admit liquid into one of the headers of the third radiator, means to pass the liquid from the other header of the third radiator into .an end header of one of thefir'st two radiators, means to discharge the liquid from the end header of the other of the first two radiators and means to conduct air over the tubes of the thirdradiator from the entrance of the V, and pass same through between the tubes of the first two radiators.

v 2. In a heat exchanger, the combination of two radiators arranged in V-1formation,'said radiators each including tubes and headers, and connected together in series, a thirdradiator comprising side headers and connecting tubes with .the tubes passing between the first two radiators and within the V thereof, means to admit liquid into one of the headers of the third radiator, means to pass the liquid from the other header of the third radiator into an end header of'one ofthe first two radiators, means to discharge theliquid from the end header of the other of the first two radiators and means to conduct air over the tubes of the third radiator from the entrance of the V,

.and pass same through between the tubesof the 40 first'two radiators, there being a direct passage from said other header of said third radiator to the end header of said other of the first two radiators, and a back-check valve in said direct passage.

3. In a heat exchanger, the combination of two radiators arranged in V-formation, said radiators each including tubes and headers, and connected together in series, a third radiator comprising side headers and'c'onnecting tubes with the'tubes passing between the first two radiators and within .the *V thereof, means to admit liquid into one of the headers of the third radiator, means to pass theliquid from the other header of the third radiator into an end header I5 of one of the first two radiators, means to discharge the liquid from the end header of the other of the first two radiators and means to conduct air over the tubes of the third radiator from the entrance of the V, and pass same.

through between the tubes of the first two radiators, there being a direct passage from said other header of said third radiator to the end header of said other of the first two radiators, and a back-check valve in said direct passage, the tubes of said third radiator being oi substantially larger gauge than those oi. saidfirst two radiators.

4.'In a liquid cooler, two radiators comprising two sets of liquid conveying tubes, an end header for each set of tubes at one end and a common header for the other ends of said sets of tubes, said headers being horizontally disposed and the sets of tubes being inclined respectively upwardly and downwardly from the common header, by virtue of which the two radiators are arranged in V-formation, means to discharge liquid from the one end header, a third radiator comprising side headers and cross tubes connecting the same, the cross tubes lying in horizontal rows between the first two radiators and in the V thereof, means to admit liquid into one side header, means for passing the liquid from the other side header into the other end header, and an air duct cooperating with said radiators to receive air in the V, pass the air over the tubes of the third radiator and then through the spaces between the tubes of the first two radiators.

5. In a liquid cooler, two radiators comprising two sets of liquid conveying tubes, an end header for each set of tubes at one end and a common header for the other ends of said sets of tubes, said headers being horizontally disposed and the sets of tubes being inclined respectively upwardly and downwardly from the common header, by virtue of which the two radiators are arranged in V-formation, means to discharge liquid from the one end header, a third radiator comprising side headers and cross tubes connecting the same, the cross tubes lying in horizontal rows between the first two radiators and in the V thereof, means to admit liquid into one side header, means for passing the liquid from the other side header into the other end header, and an air duct cooperating with said radiators to receive air in the V, pass the air over the tubes of the third radiator and then through the spaces between the tubes of the first two radiators, and a back-check valve controlled bypass duct from said other side header to the end header from which the liquid is discharged.

6. In a liquid cooler, two radiators comprising two sets of liquid conveying tubes, an end header for each set of tubes at one end and a common header for the other ends of said sets of tubes,

said headers being horizontally disposed and the sets of tubes being inclined respectively upwardly and downwardly from the common header, by virtue of which the two radiators are arranged in V-formation, means to discharge liquid from the one end header, a third radiator comprising side headers and cross tubes connecting the same, the cross tubes lying in horizontal rows, with the tubes of a row in contact side-by-side, between the first two radiators and in the V thereof, means to admit liquid into one side header, means for passing the liquid from the other side header into the other end header, and an air duct coperating with said radiators to receive air in the V, pass the air over the tubes of the third radiator and then through the spaces between the tubes of the first two radiators. k

7. In a liquid cooler, two radiators comprising two sets of liquid conveying tubes, an end header for each set of tubes at one end and a common header for the other ends of said sets of tubes, said headers being horizontally disposed and the sets of tubes being inclined respectively upwardly and downwardly from the common header, by virtue of which the two radiators are arranged in V-formation, means to discharge liquid from the one end header, 9. third radiator comprising side headers and cross tubes connecting the same, the cross tubes lying in horizontal rows, with the tubes of a row in contact side-by-side, between the first two radiators and in the V thereof, means to admit liquid into one side header, means for passing the liquid from the other side header into the other end header, and an air duct cooperating with said radiators to receive air in the V, pass the air over the tubes of the third radiator and then through the spaces between the tubes of the first two radiators, and a back-check valve controlled by-pass duct from said other side header to the end header from which the liquid is discharged. 

